{
  "abstract": "A bstract : We consider the photon-energy spectrum of the inclusive radiative decay B → X s γ , induced by the electromagnetic dipole operator O ₇ , to next-to-next-to-next-to-leading order and calculate the complete corrections for light fermions, for the contributions with two closed massive fermion loops, and for the limit of large QCD colour factors N c in the remaining part. We discuss the integrated decay rate both without and with a cut on the photon energy. In addition to the on-shell renormalization of the bottom-quark mass, we also consider the kinetic mass and the MSR mass schemes. The latter two lead to an improved perturbative behaviour of the decay rate.",
  "abstract_shown": true,
  "affiliations": [
    "Dipartimento di Fisica e Astronomia “G. Galilei,” Università di Padova",
    "Istituto Nazionale di Fisica Nucleare, Sezione di Padova",
    "Universität Zürich",
    "PSI Center for Neutron and Muon Sciences",
    "Theoretical Physics Department, CERN",
    "Karlsruhe Institute of Technology (KIT)"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Matteo Fael",
      "orcid": "0000-0002-4541-9636"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Fabian Lange",
      "orcid": "0000-0001-8531-5148"
    },
    {
      "affs": [
        4
      ],
      "name": "Kay Schönwald",
      "orcid": "0000-0002-2726-5434"
    },
    {
      "affs": [
        5
      ],
      "name": "Matthias Steinhauser",
      "orcid": "0000-0002-8146-8240"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d5zmvacdmn745.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep10(2026)114",
  "fulltext_url": null,
  "id": "d5zmvacdmn745",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/article/10.1007/JHEP10(2026)114",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3106|Particle physics theoretical and experimental studies"
    ]
  ],
  "openalex": "W7222349204",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP10(2026)114.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/d5zmvacdmn745.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:01Z",
      "native_id": "10.1007/jhep10(2026)114",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1007/JHEP10(2026)114"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Particle physics theoretical and experimental studies",
      "subfield": "high-energy"
    }
  ],
  "title": "The photon-energy spectrum in B → Xsγ to N3LO: light-fermion and large-Nc corrections",
  "title_text": "The photon-energy spectrum in B → Xsγ to N3LO: light-fermion and large-Nc corrections",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:01Z",
  "url": "https://research.draconitic.com/paper/d5zmvacdmn745",
  "venue": "Journal of High Energy Physics",
  "versions": []
}